Overview and Basis of Presentation - Narrative (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) Segment Lodge Recreational Excursion RetailShop DiningOutlet		Sep. 30, 2017 USD ($)
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | Segment				3
Amount reclassified from operating expenses (cost of services and corporate activities) to other expense, with retrospective effect	[1]	$ 527	$ 248	$ 1,308		$ 922
Tax cuts and jobs act of 2017 incomplete accounting current income tax expense		3,100
Increase to net income on adopting Topic 606		37,389	44,657	$ 51,492		79,381
Percentage of non equity ownership related redeemable noncontrolling interests				54.50%
Glacier Park Inc
Overview And Summary Of Significant Accounting Policies [Line Items]
Percentage of non-equity ownership related to non-redeemable noncontrolling interests				20.00%
ASU 2017-07
Overview And Summary Of Significant Accounting Policies [Line Items]
Cumulative-effect adjustment to increase beginning retained earnings				$ 600
Amount reclassified from operating expenses (cost of services and corporate activities) to other expense, with retrospective effect			248			922
ASU 2018-02
Overview And Summary Of Significant Accounting Policies [Line Items]
Amount reclassified the income tax effects of the tax act from AOCI to retained earnings		1,600		1,680	[2]
Accounting Standards Update 2014-09 | Effect of Change
Overview And Summary Of Significant Accounting Policies [Line Items]
Increase to net income on adopting Topic 606		700		1,900
Minimum | Accounting Standards Update 2016 02
Overview And Summary Of Significant Accounting Policies [Line Items]
Anticipated lease liability and related right of use asset		60,000		60,000
Services
Overview And Summary Of Significant Accounting Policies [Line Items]
Reduction to cost of services on adopting Topic 606		254,638	245,757	792,775		808,304
Services | ASU 2017-07
Overview And Summary Of Significant Accounting Policies [Line Items]
Reduction to cost of services on adopting Topic 606			$ (199)			$ (716)
Services | Accounting Standards Update 2014-09 | Effect of Change
Overview And Summary Of Significant Accounting Policies [Line Items]
Reduction to cost of services on adopting Topic 606		$ 1,000		$ 2,600
GES
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of product lines | Segment				3
Number of live event markets | Segment				4
Pursuit
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of business lines | Segment				4
Pursuit | Banff Jasper Collection
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of world-class recreational attractions | Recreational				5
Pursuit | Banff Jasper Collection | Banff National Park
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of lodges | Lodge				2
Pursuit | Banff Jasper Collection | Jasper National Park
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of lodges | Lodge				1
Pursuit | Alaska Collection | Denali National Park and Preserve
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of lodges | Lodge				2
Number of sightseeing excursion | Excursion				1
Pursuit | Alaska Collection | Talkeetna
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of lodges | Lodge				1
Pursuit | Alaska Collection | Kenai Fjords National Park
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of lodges | Lodge				2
Pursuit | Glacier Park Collection
Overview And Summary Of Significant Accounting Policies [Line Items]
Number of lodges | Lodge				7
Number of retail shops | RetailShop				12
Number of dining outlets | DiningOutlet				11

[1] We adopted ASU 2017-07 on January 1, 2018, which requires retrospective adoption. As a result, we recorded the nonservice cost component of net periodic benefit cost within other expense for the three and nine months ended September 30, 2018, and we reclassified $0.2 million from operating expenses to other expense for the three months ended September 30, 2017 and $0.9 million for the nine months ended September 30, 2017 to conform with current period presentation. Refer to Note 1 – Overview and Basis of Presentation for additional details on the impact of this adoption on our Condensed Consolidated Statements of Operations.

[2] Upon the adoption of ASU 2018-02, we recorded a cumulative-effect adjustment from AOCI to beginning retained earnings.